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-rw-r--r--src/mesa/main/pixel.c679
1 files changed, 12 insertions, 667 deletions
diff --git a/src/mesa/main/pixel.c b/src/mesa/main/pixel.c
index 0e9915dd38f..c98506b2bb0 100644
--- a/src/mesa/main/pixel.c
+++ b/src/mesa/main/pixel.c
@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
- * Version: 6.5.3
+ * Version: 7.1
*
- * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -22,6 +22,12 @@
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
+
+/**
+ * \file pixel.c
+ * Pixel transfer functions (glPixelZoom, glPixelMap, glPixelTransfer)
+ */
+
#include "glheader.h"
#include "bufferobj.h"
#include "colormac.h"
@@ -36,8 +42,6 @@
/***** glPixelZoom *****/
/**********************************************************************/
-
-
void GLAPIENTRY
_mesa_PixelZoom( GLfloat xfactor, GLfloat yfactor )
{
@@ -55,200 +59,6 @@ _mesa_PixelZoom( GLfloat xfactor, GLfloat yfactor )
/**********************************************************************/
-/***** glPixelStore *****/
-/**********************************************************************/
-
-
-void GLAPIENTRY
-_mesa_PixelStorei( GLenum pname, GLint param )
-{
- /* NOTE: this call can't be compiled into the display list */
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- switch (pname) {
- case GL_PACK_SWAP_BYTES:
- if (param == (GLint)ctx->Pack.SwapBytes)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Pack.SwapBytes = param ? GL_TRUE : GL_FALSE;
- break;
- case GL_PACK_LSB_FIRST:
- if (param == (GLint)ctx->Pack.LsbFirst)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Pack.LsbFirst = param ? GL_TRUE : GL_FALSE;
- break;
- case GL_PACK_ROW_LENGTH:
- if (param<0) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
- return;
- }
- if (ctx->Pack.RowLength == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Pack.RowLength = param;
- break;
- case GL_PACK_IMAGE_HEIGHT:
- if (param<0) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
- return;
- }
- if (ctx->Pack.ImageHeight == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Pack.ImageHeight = param;
- break;
- case GL_PACK_SKIP_PIXELS:
- if (param<0) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
- return;
- }
- if (ctx->Pack.SkipPixels == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Pack.SkipPixels = param;
- break;
- case GL_PACK_SKIP_ROWS:
- if (param<0) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
- return;
- }
- if (ctx->Pack.SkipRows == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Pack.SkipRows = param;
- break;
- case GL_PACK_SKIP_IMAGES:
- if (param<0) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
- return;
- }
- if (ctx->Pack.SkipImages == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Pack.SkipImages = param;
- break;
- case GL_PACK_ALIGNMENT:
- if (param!=1 && param!=2 && param!=4 && param!=8) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
- return;
- }
- if (ctx->Pack.Alignment == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Pack.Alignment = param;
- break;
- case GL_PACK_INVERT_MESA:
- if (!ctx->Extensions.MESA_pack_invert) {
- _mesa_error( ctx, GL_INVALID_ENUM, "glPixelstore(pname)" );
- return;
- }
- if (ctx->Pack.Invert == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Pack.Invert = param;
- break;
-
- case GL_UNPACK_SWAP_BYTES:
- if (param == (GLint)ctx->Unpack.SwapBytes)
- return;
- if ((GLint)ctx->Unpack.SwapBytes == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Unpack.SwapBytes = param ? GL_TRUE : GL_FALSE;
- break;
- case GL_UNPACK_LSB_FIRST:
- if (param == (GLint)ctx->Unpack.LsbFirst)
- return;
- if ((GLint)ctx->Unpack.LsbFirst == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Unpack.LsbFirst = param ? GL_TRUE : GL_FALSE;
- break;
- case GL_UNPACK_ROW_LENGTH:
- if (param<0) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
- return;
- }
- if (ctx->Unpack.RowLength == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Unpack.RowLength = param;
- break;
- case GL_UNPACK_IMAGE_HEIGHT:
- if (param<0) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
- return;
- }
- if (ctx->Unpack.ImageHeight == param)
- return;
-
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Unpack.ImageHeight = param;
- break;
- case GL_UNPACK_SKIP_PIXELS:
- if (param<0) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
- return;
- }
- if (ctx->Unpack.SkipPixels == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Unpack.SkipPixels = param;
- break;
- case GL_UNPACK_SKIP_ROWS:
- if (param<0) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
- return;
- }
- if (ctx->Unpack.SkipRows == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Unpack.SkipRows = param;
- break;
- case GL_UNPACK_SKIP_IMAGES:
- if (param < 0) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
- return;
- }
- if (ctx->Unpack.SkipImages == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Unpack.SkipImages = param;
- break;
- case GL_UNPACK_ALIGNMENT:
- if (param!=1 && param!=2 && param!=4 && param!=8) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore" );
- return;
- }
- if (ctx->Unpack.Alignment == param)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Unpack.Alignment = param;
- break;
- case GL_UNPACK_CLIENT_STORAGE_APPLE:
- if (param == (GLint)ctx->Unpack.ClientStorage)
- return;
- FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
- ctx->Unpack.ClientStorage = param ? GL_TRUE : GL_FALSE;
- break;
- default:
- _mesa_error( ctx, GL_INVALID_ENUM, "glPixelStore" );
- return;
- }
-}
-
-
-void GLAPIENTRY
-_mesa_PixelStoref( GLenum pname, GLfloat param )
-{
- _mesa_PixelStorei( pname, (GLint) param );
-}
-
-
-
-/**********************************************************************/
/***** glPixelMap *****/
/**********************************************************************/
@@ -304,7 +114,7 @@ store_pixelmap(GLcontext *ctx, GLenum map, GLsizei mapsize,
/* special case */
ctx->PixelMaps.StoS.Size = mapsize;
for (i = 0; i < mapsize; i++) {
- ctx->PixelMaps.StoS.Map[i] = IROUND(values[i]);
+ ctx->PixelMaps.StoS.Map[i] = (GLfloat)IROUND(values[i]);
}
break;
case GL_PIXEL_MAP_I_TO_I:
@@ -938,426 +748,6 @@ _mesa_PixelTransferi( GLenum pname, GLint param )
/**********************************************************************/
-/***** Pixel processing functions ******/
-/**********************************************************************/
-
-/*
- * Apply scale and bias factors to an array of RGBA pixels.
- */
-void
-_mesa_scale_and_bias_rgba(GLuint n, GLfloat rgba[][4],
- GLfloat rScale, GLfloat gScale,
- GLfloat bScale, GLfloat aScale,
- GLfloat rBias, GLfloat gBias,
- GLfloat bBias, GLfloat aBias)
-{
- if (rScale != 1.0 || rBias != 0.0) {
- GLuint i;
- for (i = 0; i < n; i++) {
- rgba[i][RCOMP] = rgba[i][RCOMP] * rScale + rBias;
- }
- }
- if (gScale != 1.0 || gBias != 0.0) {
- GLuint i;
- for (i = 0; i < n; i++) {
- rgba[i][GCOMP] = rgba[i][GCOMP] * gScale + gBias;
- }
- }
- if (bScale != 1.0 || bBias != 0.0) {
- GLuint i;
- for (i = 0; i < n; i++) {
- rgba[i][BCOMP] = rgba[i][BCOMP] * bScale + bBias;
- }
- }
- if (aScale != 1.0 || aBias != 0.0) {
- GLuint i;
- for (i = 0; i < n; i++) {
- rgba[i][ACOMP] = rgba[i][ACOMP] * aScale + aBias;
- }
- }
-}
-
-
-/*
- * Apply pixel mapping to an array of floating point RGBA pixels.
- */
-void
-_mesa_map_rgba( const GLcontext *ctx, GLuint n, GLfloat rgba[][4] )
-{
- const GLfloat rscale = (GLfloat) (ctx->PixelMaps.RtoR.Size - 1);
- const GLfloat gscale = (GLfloat) (ctx->PixelMaps.GtoG.Size - 1);
- const GLfloat bscale = (GLfloat) (ctx->PixelMaps.BtoB.Size - 1);
- const GLfloat ascale = (GLfloat) (ctx->PixelMaps.AtoA.Size - 1);
- const GLfloat *rMap = ctx->PixelMaps.RtoR.Map;
- const GLfloat *gMap = ctx->PixelMaps.GtoG.Map;
- const GLfloat *bMap = ctx->PixelMaps.BtoB.Map;
- const GLfloat *aMap = ctx->PixelMaps.AtoA.Map;
- GLuint i;
- for (i=0;i<n;i++) {
- GLfloat r = CLAMP(rgba[i][RCOMP], 0.0F, 1.0F);
- GLfloat g = CLAMP(rgba[i][GCOMP], 0.0F, 1.0F);
- GLfloat b = CLAMP(rgba[i][BCOMP], 0.0F, 1.0F);
- GLfloat a = CLAMP(rgba[i][ACOMP], 0.0F, 1.0F);
- rgba[i][RCOMP] = rMap[IROUND(r * rscale)];
- rgba[i][GCOMP] = gMap[IROUND(g * gscale)];
- rgba[i][BCOMP] = bMap[IROUND(b * bscale)];
- rgba[i][ACOMP] = aMap[IROUND(a * ascale)];
- }
-}
-
-
-/*
- * Apply the color matrix and post color matrix scaling and biasing.
- */
-void
-_mesa_transform_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4])
-{
- const GLfloat rs = ctx->Pixel.PostColorMatrixScale[0];
- const GLfloat rb = ctx->Pixel.PostColorMatrixBias[0];
- const GLfloat gs = ctx->Pixel.PostColorMatrixScale[1];
- const GLfloat gb = ctx->Pixel.PostColorMatrixBias[1];
- const GLfloat bs = ctx->Pixel.PostColorMatrixScale[2];
- const GLfloat bb = ctx->Pixel.PostColorMatrixBias[2];
- const GLfloat as = ctx->Pixel.PostColorMatrixScale[3];
- const GLfloat ab = ctx->Pixel.PostColorMatrixBias[3];
- const GLfloat *m = ctx->ColorMatrixStack.Top->m;
- GLuint i;
- for (i = 0; i < n; i++) {
- const GLfloat r = rgba[i][RCOMP];
- const GLfloat g = rgba[i][GCOMP];
- const GLfloat b = rgba[i][BCOMP];
- const GLfloat a = rgba[i][ACOMP];
- rgba[i][RCOMP] = (m[0] * r + m[4] * g + m[ 8] * b + m[12] * a) * rs + rb;
- rgba[i][GCOMP] = (m[1] * r + m[5] * g + m[ 9] * b + m[13] * a) * gs + gb;
- rgba[i][BCOMP] = (m[2] * r + m[6] * g + m[10] * b + m[14] * a) * bs + bb;
- rgba[i][ACOMP] = (m[3] * r + m[7] * g + m[11] * b + m[15] * a) * as + ab;
- }
-}
-
-
-/**
- * Apply a color table lookup to an array of floating point RGBA colors.
- */
-void
-_mesa_lookup_rgba_float(const struct gl_color_table *table,
- GLuint n, GLfloat rgba[][4])
-{
- const GLint max = table->Size - 1;
- const GLfloat scale = (GLfloat) max;
- const GLfloat *lut = table->TableF;
- GLuint i;
-
- if (!table->TableF || table->Size == 0)
- return;
-
- switch (table->_BaseFormat) {
- case GL_INTENSITY:
- /* replace RGBA with I */
- for (i = 0; i < n; i++) {
- GLint j = IROUND(rgba[i][RCOMP] * scale);
- GLfloat c = lut[CLAMP(j, 0, max)];
- rgba[i][RCOMP] =
- rgba[i][GCOMP] =
- rgba[i][BCOMP] =
- rgba[i][ACOMP] = c;
- }
- break;
- case GL_LUMINANCE:
- /* replace RGB with L */
- for (i = 0; i < n; i++) {
- GLint j = IROUND(rgba[i][RCOMP] * scale);
- GLfloat c = lut[CLAMP(j, 0, max)];
- rgba[i][RCOMP] =
- rgba[i][GCOMP] =
- rgba[i][BCOMP] = c;
- }
- break;
- case GL_ALPHA:
- /* replace A with A */
- for (i = 0; i < n; i++) {
- GLint j = IROUND(rgba[i][ACOMP] * scale);
- rgba[i][ACOMP] = lut[CLAMP(j, 0, max)];
- }
- break;
- case GL_LUMINANCE_ALPHA:
- /* replace RGBA with LLLA */
- for (i = 0; i < n; i++) {
- GLint jL = IROUND(rgba[i][RCOMP] * scale);
- GLint jA = IROUND(rgba[i][ACOMP] * scale);
- GLfloat luminance, alpha;
- jL = CLAMP(jL, 0, max);
- jA = CLAMP(jA, 0, max);
- luminance = lut[jL * 2 + 0];
- alpha = lut[jA * 2 + 1];
- rgba[i][RCOMP] =
- rgba[i][GCOMP] =
- rgba[i][BCOMP] = luminance;
- rgba[i][ACOMP] = alpha;;
- }
- break;
- case GL_RGB:
- /* replace RGB with RGB */
- for (i = 0; i < n; i++) {
- GLint jR = IROUND(rgba[i][RCOMP] * scale);
- GLint jG = IROUND(rgba[i][GCOMP] * scale);
- GLint jB = IROUND(rgba[i][BCOMP] * scale);
- jR = CLAMP(jR, 0, max);
- jG = CLAMP(jG, 0, max);
- jB = CLAMP(jB, 0, max);
- rgba[i][RCOMP] = lut[jR * 3 + 0];
- rgba[i][GCOMP] = lut[jG * 3 + 1];
- rgba[i][BCOMP] = lut[jB * 3 + 2];
- }
- break;
- case GL_RGBA:
- /* replace RGBA with RGBA */
- for (i = 0; i < n; i++) {
- GLint jR = IROUND(rgba[i][RCOMP] * scale);
- GLint jG = IROUND(rgba[i][GCOMP] * scale);
- GLint jB = IROUND(rgba[i][BCOMP] * scale);
- GLint jA = IROUND(rgba[i][ACOMP] * scale);
- jR = CLAMP(jR, 0, max);
- jG = CLAMP(jG, 0, max);
- jB = CLAMP(jB, 0, max);
- jA = CLAMP(jA, 0, max);
- rgba[i][RCOMP] = lut[jR * 4 + 0];
- rgba[i][GCOMP] = lut[jG * 4 + 1];
- rgba[i][BCOMP] = lut[jB * 4 + 2];
- rgba[i][ACOMP] = lut[jA * 4 + 3];
- }
- break;
- default:
- _mesa_problem(NULL, "Bad format in _mesa_lookup_rgba_float");
- return;
- }
-}
-
-
-
-/**
- * Apply a color table lookup to an array of ubyte/RGBA colors.
- */
-void
-_mesa_lookup_rgba_ubyte(const struct gl_color_table *table,
- GLuint n, GLubyte rgba[][4])
-{
- const GLubyte *lut = table->TableUB;
- const GLfloat scale = (GLfloat) (table->Size - 1) / 255.0;
- GLuint i;
-
- if (!table->TableUB || table->Size == 0)
- return;
-
- switch (table->_BaseFormat) {
- case GL_INTENSITY:
- /* replace RGBA with I */
- if (table->Size == 256) {
- for (i = 0; i < n; i++) {
- const GLubyte c = lut[rgba[i][RCOMP]];
- rgba[i][RCOMP] =
- rgba[i][GCOMP] =
- rgba[i][BCOMP] =
- rgba[i][ACOMP] = c;
- }
- }
- else {
- for (i = 0; i < n; i++) {
- GLint j = IROUND((GLfloat) rgba[i][RCOMP] * scale);
- rgba[i][RCOMP] =
- rgba[i][GCOMP] =
- rgba[i][BCOMP] =
- rgba[i][ACOMP] = lut[j];
- }
- }
- break;
- case GL_LUMINANCE:
- /* replace RGB with L */
- if (table->Size == 256) {
- for (i = 0; i < n; i++) {
- const GLubyte c = lut[rgba[i][RCOMP]];
- rgba[i][RCOMP] =
- rgba[i][GCOMP] =
- rgba[i][BCOMP] = c;
- }
- }
- else {
- for (i = 0; i < n; i++) {
- GLint j = IROUND((GLfloat) rgba[i][RCOMP] * scale);
- rgba[i][RCOMP] =
- rgba[i][GCOMP] =
- rgba[i][BCOMP] = lut[j];
- }
- }
- break;
- case GL_ALPHA:
- /* replace A with A */
- if (table->Size == 256) {
- for (i = 0; i < n; i++) {
- rgba[i][ACOMP] = lut[rgba[i][ACOMP]];
- }
- }
- else {
- for (i = 0; i < n; i++) {
- GLint j = IROUND((GLfloat) rgba[i][ACOMP] * scale);
- rgba[i][ACOMP] = lut[j];
- }
- }
- break;
- case GL_LUMINANCE_ALPHA:
- /* replace RGBA with LLLA */
- if (table->Size == 256) {
- for (i = 0; i < n; i++) {
- GLubyte l = lut[rgba[i][RCOMP] * 2 + 0];
- GLubyte a = lut[rgba[i][ACOMP] * 2 + 1];;
- rgba[i][RCOMP] =
- rgba[i][GCOMP] =
- rgba[i][BCOMP] = l;
- rgba[i][ACOMP] = a;
- }
- }
- else {
- for (i = 0; i < n; i++) {
- GLint jL = IROUND((GLfloat) rgba[i][RCOMP] * scale);
- GLint jA = IROUND((GLfloat) rgba[i][ACOMP] * scale);
- GLubyte luminance = lut[jL * 2 + 0];
- GLubyte alpha = lut[jA * 2 + 1];
- rgba[i][RCOMP] =
- rgba[i][GCOMP] =
- rgba[i][BCOMP] = luminance;
- rgba[i][ACOMP] = alpha;
- }
- }
- break;
- case GL_RGB:
- if (table->Size == 256) {
- for (i = 0; i < n; i++) {
- rgba[i][RCOMP] = lut[rgba[i][RCOMP] * 3 + 0];
- rgba[i][GCOMP] = lut[rgba[i][GCOMP] * 3 + 1];
- rgba[i][BCOMP] = lut[rgba[i][BCOMP] * 3 + 2];
- }
- }
- else {
- for (i = 0; i < n; i++) {
- GLint jR = IROUND((GLfloat) rgba[i][RCOMP] * scale);
- GLint jG = IROUND((GLfloat) rgba[i][GCOMP] * scale);
- GLint jB = IROUND((GLfloat) rgba[i][BCOMP] * scale);
- rgba[i][RCOMP] = lut[jR * 3 + 0];
- rgba[i][GCOMP] = lut[jG * 3 + 1];
- rgba[i][BCOMP] = lut[jB * 3 + 2];
- }
- }
- break;
- case GL_RGBA:
- if (table->Size == 256) {
- for (i = 0; i < n; i++) {
- rgba[i][RCOMP] = lut[rgba[i][RCOMP] * 4 + 0];
- rgba[i][GCOMP] = lut[rgba[i][GCOMP] * 4 + 1];
- rgba[i][BCOMP] = lut[rgba[i][BCOMP] * 4 + 2];
- rgba[i][ACOMP] = lut[rgba[i][ACOMP] * 4 + 3];
- }
- }
- else {
- for (i = 0; i < n; i++) {
- GLint jR = IROUND((GLfloat) rgba[i][RCOMP] * scale);
- GLint jG = IROUND((GLfloat) rgba[i][GCOMP] * scale);
- GLint jB = IROUND((GLfloat) rgba[i][BCOMP] * scale);
- GLint jA = IROUND((GLfloat) rgba[i][ACOMP] * scale);
- CLAMPED_FLOAT_TO_CHAN(rgba[i][RCOMP], lut[jR * 4 + 0]);
- CLAMPED_FLOAT_TO_CHAN(rgba[i][GCOMP], lut[jG * 4 + 1]);
- CLAMPED_FLOAT_TO_CHAN(rgba[i][BCOMP], lut[jB * 4 + 2]);
- CLAMPED_FLOAT_TO_CHAN(rgba[i][ACOMP], lut[jA * 4 + 3]);
- }
- }
- break;
- default:
- _mesa_problem(NULL, "Bad format in _mesa_lookup_rgba_chan");
- return;
- }
-}
-
-
-
-/*
- * Map color indexes to float rgba values.
- */
-void
-_mesa_map_ci_to_rgba( const GLcontext *ctx, GLuint n,
- const GLuint index[], GLfloat rgba[][4] )
-{
- GLuint rmask = ctx->PixelMaps.ItoR.Size - 1;
- GLuint gmask = ctx->PixelMaps.ItoG.Size - 1;
- GLuint bmask = ctx->PixelMaps.ItoB.Size - 1;
- GLuint amask = ctx->PixelMaps.ItoA.Size - 1;
- const GLfloat *rMap = ctx->PixelMaps.ItoR.Map;
- const GLfloat *gMap = ctx->PixelMaps.ItoG.Map;
- const GLfloat *bMap = ctx->PixelMaps.ItoB.Map;
- const GLfloat *aMap = ctx->PixelMaps.ItoA.Map;
- GLuint i;
- for (i=0;i<n;i++) {
- rgba[i][RCOMP] = rMap[index[i] & rmask];
- rgba[i][GCOMP] = gMap[index[i] & gmask];
- rgba[i][BCOMP] = bMap[index[i] & bmask];
- rgba[i][ACOMP] = aMap[index[i] & amask];
- }
-}
-
-
-/**
- * Map ubyte color indexes to ubyte/RGBA values.
- */
-void
-_mesa_map_ci8_to_rgba8(const GLcontext *ctx, GLuint n, const GLubyte index[],
- GLubyte rgba[][4])
-{
- GLuint rmask = ctx->PixelMaps.ItoR.Size - 1;
- GLuint gmask = ctx->PixelMaps.ItoG.Size - 1;
- GLuint bmask = ctx->PixelMaps.ItoB.Size - 1;
- GLuint amask = ctx->PixelMaps.ItoA.Size - 1;
- const GLubyte *rMap = ctx->PixelMaps.ItoR.Map8;
- const GLubyte *gMap = ctx->PixelMaps.ItoG.Map8;
- const GLubyte *bMap = ctx->PixelMaps.ItoB.Map8;
- const GLubyte *aMap = ctx->PixelMaps.ItoA.Map8;
- GLuint i;
- for (i=0;i<n;i++) {
- rgba[i][RCOMP] = rMap[index[i] & rmask];
- rgba[i][GCOMP] = gMap[index[i] & gmask];
- rgba[i][BCOMP] = bMap[index[i] & bmask];
- rgba[i][ACOMP] = aMap[index[i] & amask];
- }
-}
-
-
-void
-_mesa_scale_and_bias_depth(const GLcontext *ctx, GLuint n,
- GLfloat depthValues[])
-{
- const GLfloat scale = ctx->Pixel.DepthScale;
- const GLfloat bias = ctx->Pixel.DepthBias;
- GLuint i;
- for (i = 0; i < n; i++) {
- GLfloat d = depthValues[i] * scale + bias;
- depthValues[i] = CLAMP(d, 0.0F, 1.0F);
- }
-}
-
-
-void
-_mesa_scale_and_bias_depth_uint(const GLcontext *ctx, GLuint n,
- GLuint depthValues[])
-{
- const GLdouble max = (double) 0xffffffff;
- const GLdouble scale = ctx->Pixel.DepthScale;
- const GLdouble bias = ctx->Pixel.DepthBias * max;
- GLuint i;
- for (i = 0; i < n; i++) {
- GLdouble d = (GLdouble) depthValues[i] * scale + bias;
- d = CLAMP(d, 0.0, max);
- depthValues[i] = (GLuint) d;
- }
-}
-
-
-/**********************************************************************/
/***** State Management *****/
/**********************************************************************/
@@ -1428,6 +818,9 @@ update_image_transfer_state(GLcontext *ctx)
}
+/**
+ * Update meas pixel transfer derived state.
+ */
void _mesa_update_pixel( GLcontext *ctx, GLuint new_state )
{
if (new_state & _NEW_COLOR_MATRIX)
@@ -1517,54 +910,6 @@ _mesa_init_pixel( GLcontext *ctx )
ASSIGN_4V(ctx->Pixel.TextureColorTableScale, 1.0, 1.0, 1.0, 1.0);
ASSIGN_4V(ctx->Pixel.TextureColorTableBias, 0.0, 0.0, 0.0, 0.0);
- /* Pixel transfer */
- ctx->Pack.Alignment = 4;
- ctx->Pack.RowLength = 0;
- ctx->Pack.ImageHeight = 0;
- ctx->Pack.SkipPixels = 0;
- ctx->Pack.SkipRows = 0;
- ctx->Pack.SkipImages = 0;
- ctx->Pack.SwapBytes = GL_FALSE;
- ctx->Pack.LsbFirst = GL_FALSE;
- ctx->Pack.ClientStorage = GL_FALSE;
- ctx->Pack.Invert = GL_FALSE;
-#if FEATURE_EXT_pixel_buffer_object
- ctx->Pack.BufferObj = ctx->Array.NullBufferObj;
-#endif
- ctx->Unpack.Alignment = 4;
- ctx->Unpack.RowLength = 0;
- ctx->Unpack.ImageHeight = 0;
- ctx->Unpack.SkipPixels = 0;
- ctx->Unpack.SkipRows = 0;
- ctx->Unpack.SkipImages = 0;
- ctx->Unpack.SwapBytes = GL_FALSE;
- ctx->Unpack.LsbFirst = GL_FALSE;
- ctx->Unpack.ClientStorage = GL_FALSE;
- ctx->Unpack.Invert = GL_FALSE;
-#if FEATURE_EXT_pixel_buffer_object
- ctx->Unpack.BufferObj = ctx->Array.NullBufferObj;
-#endif
-
- /*
- * _mesa_unpack_image() returns image data in this format. When we
- * execute image commands (glDrawPixels(), glTexImage(), etc) from
- * within display lists we have to be sure to set the current
- * unpacking parameters to these values!
- */
- ctx->DefaultPacking.Alignment = 1;
- ctx->DefaultPacking.RowLength = 0;
- ctx->DefaultPacking.SkipPixels = 0;
- ctx->DefaultPacking.SkipRows = 0;
- ctx->DefaultPacking.ImageHeight = 0;
- ctx->DefaultPacking.SkipImages = 0;
- ctx->DefaultPacking.SwapBytes = GL_FALSE;
- ctx->DefaultPacking.LsbFirst = GL_FALSE;
- ctx->DefaultPacking.ClientStorage = GL_FALSE;
- ctx->DefaultPacking.Invert = GL_FALSE;
-#if FEATURE_EXT_pixel_buffer_object
- ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj;
-#endif
-
if (ctx->Visual.doubleBufferMode) {
ctx->Pixel.ReadBuffer = GL_BACK;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-14 22:54:22 +0000